In this study, we investigated the essential role of feed solution pH so as to gain insights into the transport mechanisms of succinic acid concentration by osmotically-driven forward osmosis （FO） process. FO perfor...In this study, we investigated the essential role of feed solution pH so as to gain insights into the transport mechanisms of succinic acid concentration by osmotically-driven forward osmosis （FO） process. FO performances including water flux and bidirectional transport of succinate and chloride anions were systematically examined using cellulose triacetate-based FO membrane. Additionally, real seawater was explored as draw solution. Experimental results revealed that the pH-dependent speciation of succinic acid can affect the FO performances. Ionization of succinic acid at higher solution pH enhanced the osmotic pressure of feed solution, thus leading to lower water flux performance. A strong effect was pointed out on the succinate rejection for which nearly 100% rejections were achieved at pH above its pKa2 value. The rejection of succinate increased in the following order of chemical form： C2H4C2O4H2 〈 C2H4C2OH- 〈 C2H4C2O24-. With real seawater as the draw solution, low to moderate water fluxes （〈4 L. m- 2. h- 1 ） were observed. The divalent succinate anion was highly retained in the feed side despite differences in the succinic acid feed concentration at pH of approximately 6.90.展开更多
Qichang Dong was a famous calligraphy and painting artist in ancient China. The theory of southern and northern schools proposed by him was a conclusion to traditional Chinese landscape painting art, and played an inc...Qichang Dong was a famous calligraphy and painting artist in ancient China. The theory of southern and northern schools proposed by him was a conclusion to traditional Chinese landscape painting art, and played an incomparable function in the traditional Chinese painting history in comparison with other painting theories. In the painting history, there were the theory of ＂pre-Dong＂ and the theory of ＂post-Dong＂ . In this paper, by starting from Qichang Dong＇ s ＂theory of southern and northern schoots＂ , the homogeneities between traditional Chinese music and painting arts are analyzed from the principle of spirit and the principle of technology, so that the homogeneities between traditional Chinese music and painting arts are explored in aesthetic concept and actual art creation.展开更多
Mr. Huang Dufeng is the master to paint landscapes, flowers, birds and people. In artistic practice, he clearly saw that in addition to using the ink to express the appearance, there exists its independence of aesthet...Mr. Huang Dufeng is the master to paint landscapes, flowers, birds and people. In artistic practice, he clearly saw that in addition to using the ink to express the appearance, there exists its independence of aesthetic nature. In addition, Mr. Huang Dufeng is aware of vital importance of the spirit manifesting in the traditional painting. He has foresight in the face of treating the mutual development of Chinese and Western painting. In the meantime to advocate learning western painting, he all along emphasize that we should flourish the specific beauty of Chinese painting. He has showed a wide range of subjects, breaking the bondage of ＂four gentlemen＂ and pioneered the art image of angelfish. By discussion on Mr. Huang Dufeng through the painting features and process of thinking, he insisted on aesthetics concept of ＂Ancient and modern, compatibility of Chinese and Western＂.展开更多
National theme plays an important position in modern and contemporary Chinese painting, to achieve style deepen and breakthrough, which requires the painter first have a deep understanding of minority cultures, and ha...National theme plays an important position in modern and contemporary Chinese painting, to achieve style deepen and breakthrough, which requires the painter first have a deep understanding of minority cultures, and have a perceptual experience of their lives. Relying on subjective feelings can easily made a minority careless conceptual evaluation, to say it is brave and pretty strong and can sing and dance that is not a bad idea; deep into their village, listening to folk songs, see the costumes, look for custom these are little difficult, in order to search the resulting to see a few works will make the looking luster, but so far it is still shallow grasp.展开更多
基金the financial support for this work provided by the LRGS/2013/UKM-UKM/PT/03 grant from the Ministry of Education Malaysia
文摘In this study, we investigated the essential role of feed solution pH so as to gain insights into the transport mechanisms of succinic acid concentration by osmotically-driven forward osmosis （FO） process. FO performances including water flux and bidirectional transport of succinate and chloride anions were systematically examined using cellulose triacetate-based FO membrane. Additionally, real seawater was explored as draw solution. Experimental results revealed that the pH-dependent speciation of succinic acid can affect the FO performances. Ionization of succinic acid at higher solution pH enhanced the osmotic pressure of feed solution, thus leading to lower water flux performance. A strong effect was pointed out on the succinate rejection for which nearly 100% rejections were achieved at pH above its pKa2 value. The rejection of succinate increased in the following order of chemical form： C2H4C2O4H2 〈 C2H4C2OH- 〈 C2H4C2O24-. With real seawater as the draw solution, low to moderate water fluxes （〈4 L. m- 2. h- 1 ） were observed. The divalent succinate anion was highly retained in the feed side despite differences in the succinic acid feed concentration at pH of approximately 6.90.
文摘Qichang Dong was a famous calligraphy and painting artist in ancient China. The theory of southern and northern schools proposed by him was a conclusion to traditional Chinese landscape painting art, and played an incomparable function in the traditional Chinese painting history in comparison with other painting theories. In the painting history, there were the theory of ＂pre-Dong＂ and the theory of ＂post-Dong＂ . In this paper, by starting from Qichang Dong＇ s ＂theory of southern and northern schoots＂ , the homogeneities between traditional Chinese music and painting arts are analyzed from the principle of spirit and the principle of technology, so that the homogeneities between traditional Chinese music and painting arts are explored in aesthetic concept and actual art creation.
文摘Mr. Huang Dufeng is the master to paint landscapes, flowers, birds and people. In artistic practice, he clearly saw that in addition to using the ink to express the appearance, there exists its independence of aesthetic nature. In addition, Mr. Huang Dufeng is aware of vital importance of the spirit manifesting in the traditional painting. He has foresight in the face of treating the mutual development of Chinese and Western painting. In the meantime to advocate learning western painting, he all along emphasize that we should flourish the specific beauty of Chinese painting. He has showed a wide range of subjects, breaking the bondage of ＂four gentlemen＂ and pioneered the art image of angelfish. By discussion on Mr. Huang Dufeng through the painting features and process of thinking, he insisted on aesthetics concept of ＂Ancient and modern, compatibility of Chinese and Western＂.
文摘National theme plays an important position in modern and contemporary Chinese painting, to achieve style deepen and breakthrough, which requires the painter first have a deep understanding of minority cultures, and have a perceptual experience of their lives. Relying on subjective feelings can easily made a minority careless conceptual evaluation, to say it is brave and pretty strong and can sing and dance that is not a bad idea; deep into their village, listening to folk songs, see the costumes, look for custom these are little difficult, in order to search the resulting to see a few works will make the looking luster, but so far it is still shallow grasp.
